diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 87736112fb763aa1da62306533bbfe47a5378ded..a7e4edb3ab5ae7190f593fe4a87e07ee83a318b2 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -1493,7 +1493,7 @@ Compilation *Driver::BuildCompilation(ArrayRef<const char *> ArgList) {
 
 #ifdef BUILD_FOR_OPENEULER
   if(C->getArgs().hasFlag(options::OPT_fgcc_compatible,
-                          options::OPT_fno_gcc_compatible, true)) {
+                          options::OPT_fno_gcc_compatible, false)) {
     getDiags().setDiagnosticGroupWarningAsError("unused-command-line-argument", 0);
     getDiags().setDiagnosticGroupWarningAsError("ignored-optimization-argument", 0);
   }
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 0921e6071d2681be97a6132fe9e09edf8c6e4b5a..793af55a1e5f02c66cf9339d52be23fcd7533ed2 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -4682,7 +4682,7 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
 
 #ifdef BUILD_FOR_OPENEULER
   if (Args.hasFlag(options::OPT_fgcc_compatible,
-                   options::OPT_fno_gcc_compatible, true)) {
+                   options::OPT_fno_gcc_compatible, false)) {
     CmdArgs.push_back("-Wno-error=unknown-warning-option");
     CmdArgs.push_back("-Wno-error=unused-parameter");
     CmdArgs.push_back("-Wno-error=unused-function");